Ore concentrator



c. c. HEBBARD.

ORE CDNCENTRATOR.

APPLICATION mm mm: 20. m9.

Patented Dec. 2, 1919.

2 SHEETS-SHEET I.

anuenfoz I 35% W 1 z I u (Conny C. C. HEBBARD.

ORE CONCENTRATOR.

arrucmou HLED was 20. ms.

1,323,470.- Patented Dent/2,1919.

2 SHEET8-SNEET 2.

awwntoz aafi eiiard w Wm CHARLES C. I-IEBBABD, O F J'OPLIN, MISSOURI.

onn-concnnrimron.

Specification of Letters Patent.

Patented Dec. 2, 1919.

Application filed June 28, 1919. Serial No. 307,272.

1 '0 all whom it may concern.-

Be it known that 1', CHARLES C. HEBBARD, a citizen of the United States, residin at Joplin, in the county of Jasper and State of Missouri, have invented certain new and useful Improvements in Ore-Concentrators, of which the following is a specification, reference being had to the accompanying drawin s.

This invention relates to concentrating tables, and particularly to the end motions thereof, that is the means whereby the movement of the discharge end of the table is given a lateral component.

The general object of this invention is to provide very simple and easily applied mechanism to this end which, upon a jar or reciprocating motion being given to the table at its head end, will cause the discharge end of the table to have a lateral component, and particularly which will cause any point at the discharge end of the table to have a movement in an ellipse, thus giving a panning motion to the discharge end of the table, which motion is particularly essential for the proper separation of the concentrates.

A further object is to provide improved means for supporting the deck whereby the deck may have a free movement in all directions to thus enable the deck to move laterally as well as longitudinally.

And still another object is to provide mechanism for giving the lateral component to the table, comprising a crank-like member supported on a shaft m'ount'ed upon the base, the free extremity of the crank-like member being connected to the table, and the cranklike member being so set as to cause a lateral movement of the discharge end of the table when the head end of the table is reciprocated longitudinally.

A further object is to provide a mechanism of this character wherein the amount of movement of the table, and particularly the amount of lateral movement, may be adjusted and controlled.

Another object is to provide very simple means whereby the deck may be laterally tilted and adjusted. m

My invention is illustrated in the accompanying drawings, wherein Figure 1 is a top plan view of a concentrating table with the deck removed, show in one form of my device applied thereto;

'g. 2 is an end elevation at the table;

Fig. 3 is a fragmentary top plan view showing another form of my device showing a portion of the table;

Fig. 4 is an end elevation of the table shown in Fig. 3;

Fig. 5 is a vertical sectional view through the1 table showing my device in elevation; an

Fig. 6 is a section on the line 66 of Fig. 4.

eferring to these drawin s, it will be seen that t e concentrating ta le comprises longitudinall extending sills or base beams 10. Dispose above the sills 10 are a plurality of transverse supporting beams 11. The sills 10 have bolted to them a clamp 12, held in place by means of bolts 13 or other suitable lncans. Disposed in these clamps are a plurality of vertically extending, flexible supports 14, each support, as illustrated in Fig. 6, being composed of a group or bundle of small rods 15, square in cross section, and arranged in abutting relation to form a support It, which is also square in cross section, these rods being referably of second growth hickory. hese supports may have any desired-len th and may be square in cross section for t eir entire length, or ma have the middle portion of the composite support turned down or reduced to any desiredextent to secure the desired resiliency in the support. The supports are wrapped or banded at intervals, as at 16, so that the individual pieces or rods of the support are held firmly together. These individual rods or piecesmay also be glued to each other. Such a support as this will yield equall well in any direction, either longitudina 1y or laterally of the deck axis or at an angle between these two movements. The upper end of the sup arts are clampled between metallic plates 1 ,bolted or-ot erwise fastened to the beams 11 and projecting out beyond these beams, these clamping plates being in turn clamped upon the supports by bolts 18.

The deck beams 19 are each provided adjacent one end with downwardly extending cars 20 mounted on clamps 21 which embrace the beams 19, these ears 20 extending downward between the clamping plates 17 and bein ivoted thereto by a transverse bolt 22, t es'e' ears, of course, extending into recesses formed in the upper edge face of the corresponding beam 11. Adjacent the opposite ehdj'of each beam 19, there is pro vided a clamp 23 carr ing a roller 24 disposed in a recess in I e beam 19, and between the clamping plates 17 at this end of the beams 11 there is provided. a cam-shaped member 25 mounted on a square shaft 26. shaft extends the full length of the tab e.

It will be understood that each of the deck supporting beams 19 is provided with a grooved roller 24, and each of the corresponding beams 11 is provided wlth a cam engaging in the groove of the corresponding roller so that when the shaft 26 1s rotated, all the cams 25 will move together and thus the table may be tilted. The tongue and oove engagement between the cam and r0] er will cause the deck and the beams 11 to move longitudinally to ether. The shaft 26 is provided at any esired point with a handle whereby it may be oscillated and this handle may engage with an arcuate rack or equivalent device for the purpose of holding the handle in adjusted positions. By this means the deck may be laterally tilted to any desired amount.

In Fig. 1, I show one means for securing a lateral movement at the discharge end of the table. This com rises a transverse shaft 27 mounted in bearings 28 carried by the sills 10, this shaft extending at an angle to the longitudinal axis of the table and having at one end an upwardly extending arm 29 which is fast to the shaft 27, and which is provided at its upper, free end with a laterally projecting stud 30, engaging a socket formed in a socket member 31 carried upon the end beam 11. This stud 30 has a hemispherical extremity and the socket is also hemispherical. Extending from the free end of the arm 29, downward and outward toward the shaft, is an integral rod 32 which, at its lower end, is formed with an eye through which the shaft 27 passes. This end of the shaft is screwthreaded, and a nut 33 is mounted upon this screw-threaded end, bearing against the e e or hearing on the end of the rod 32. his nut 33 is a compensating nut which, when turned up, acts to force the stud 30 into the socket member 31, thus keeping the ball and socket closely engaged and taking up wear.

With this end inotion, it will be obvious that upon a longitudinal jar being given to thetable, as by any ordinar head motion, as for instance, by the hea motion illustrated in my Patent, No. 1,286,617, ranted on the 3rd day of December, 1918, t e disohar e end of the table will move longitudina'ly, and because of the crank 29, will also be given a lateral movement on the line a a in Fig. 1. The longitudinal, reciprocating movement given to the deck is commonly from 2" to in length, and the crank motion illustrated will" produce-elateralmovement of from a" to Q", but this can be varied by changing the angle of the shaft 32. Thus, in F ig. 1 I have illustrated one end of the shaft as being loosely mount-- ed in the pillar block 28 and the opposite end of the shaft 32 as bein carried in a pillar block 28 which is slidable upon an arcuate track 28, along which the pillar block is adjustable. Thus, the shaft 32 may be shifted from the position shown in full lines to either of the positions shown in dotted lines. The pillar block is held in its adjusted position by means of a set screw 28 or other suitable means.

In Fig. 3 I show another, and in many respects, a better mechanism for securing lateral motion at the discharge end of the deck and securing the elliptical panning movement which is particularly desirable for this purpose. In this case, I. mount upon the sills 10, beams 34 forming a platform, and fasten upon this platform a base plati- 35 having an upwardly extending, approximately semi-circular socket 36. Disposed in this socket is the cylindrical end of a crank arm 37, whose other end is formed with upwardly projecting lugs 38 which embrace the end beam 11, as illustrated in Fig. 1. The arm or lever 37 is formed with a laterally extending arm 39 and pivoted to this is a link 4:0 which is screw-threaded at its extremity and extends loosely through a bracket 41 attached to the under side of the end beam 11. Engaging this screw-threaded end of the link 40 1s a nut constituted by an interiorly screw-threaded hand wheel 42. The inner faces of the lugs 38, as will be seen in Fig. 3, are convexly rounded and embrace the beam 11 snugly. As illustrated in Flg. 3, the arm 39 is laterally extended and formed with a plurality of perforations 43, and a bolt 44 extends through the end of the link 40 and is engageable in any one of the erforations. With this construction also, w en a longitudinal thrust is given to the deck beams 11 at the head end of the table, as by any ordinar head motion, the discharge end of the ta le will be caused to shift laterally.

It will be noted that in the construction shown in Fig. 1, the socket 31 is not connected to the projecting In 30, and that in Fig. 3, the lugs 38 have siding and rock ing engagement with the deck beam 11. It is because of the fact that there is not a rigid engagement between the lug 30 and the socket 31, and between the lugs 38 and the deck beam 11, that I secure an elliptical. movement or panning action of the deck at the discharge end thereof.

If the deck was moved longitudinally and. laterally on a solid plane surface and the lug 30 and the socket 31, the upwardly pIO- jecting lugs 35, and beam 11, were positively connected together, the discharge, end

or the deals would move ina dim onal met-emu on :the same r line, :in Jot er words there would be Pnoielli 'cal or panning movement, but ipasmuo as the parts. menstionied are not fastened ther and the one the table combined with the load of about of p111 on it, and this tends to 400 pounds e socket 31 from the lug slightly separate and the spring bi'ingsthe table ba cki'ror thenext impulse, thus giving the endof the table a swinging motion on the fleztible sup ports -and securmg the elliptical movement which is essentiah- This is plainly shown in tables of this character by mounting a card upon the deck and fixing a pencil in a stationary position above the deck so it will bear upon the card.

The same action is secured in the construction shown in Fig. 3 by the slippage which occurs between the lugs 38' and the deck beam.

In order to secure an adjustment of the degree of lateral movement in the construction illustrated in Fig. 3, the pin or bolt 44: is changed from one hole 43 to another to thereby increase or decrease the length'of the crank, and this causes the leveror arm 2'37 with its projecting? lug to 'givemore or less throwtoLthe crank and consequently a more or less lateral movement. The tightenin or loosening of the hand Wheel 42 does not c ange this lateral movement and is only for the purpose of bringing a tension between the supports and lugs'38.

It is'to be particularly noted that some means must be rovided for adjusting the plane cit-he dec and that I have rovided means which are mounted upon the. upper end oi? the suppdrts 14 forthis purpose i 'In 1 all construction; of-.;which -.1 ain. =-amane,

wherein there is means fbnhdgiustingzor tilting the deck; thedeck basically a horizontal movement and uieansior-ultin the deck are located in orgnearthebase' 0 itheqmachine and in i a fiiied'posi'tion. I It wduld be impossible, however, to: use any such? means for adjusting theodech with my mechanism beoause the deck of my. concenthatoluhas both a longitudinal movement and a5 lateral movement. One of theiundamentalrequimmentsin order to reta'm agoodir'emv- 1 qngxtudinallmand laterally, and eansnfor givinga: lateral movementto the discharge ,125 end btthe desks hen i he dsck sitions' flat and levelt 1:12-11 the raptieal emhodimentef deckg'thedeok came 19.. are

supported I on: eadh side-1 atileasitfiweifienible supports? ltljiehd is memor -vthe movements, in other words my end motion ,ni noverrientas,previous1y describe e ,iule 12? haveiilllelst ted: w m ld llml'fis B deck mustbe ke t flat and ,le elsunder all circumstances. f-notso held theore kw o il nottraivel ireely ntowa td tho d snhs gs. en oi thefiaitle. It; therdeck becomes warped or any ,part of its surface sag or, becomes uneven, or the su ports do not holditperfectly level and at during its movemont', satisfactory resultscaunot be sccured,where the deick 15, Submitted to a longitud nal as elles zalateral thrust. v Z1herejiore, ina device of thi'sv chal aqter it is absolutely neces- Sitlfy that, the tilting elements namely, the cams 2'5, and the means for adjusting these cams, should follow the deck through both .80 could not be used with a deck of a concentratin table unless means were provided for latera y adjusting the deck, said means b eing mounted upon the upper ends of the elglblep supports or so mounted as to move with the deck.

One of, the particular advantages due to the use of the .end motions illustrated is that by the means of this end motion the discharge end of the table will be given a pan- IlIHg mOVQIIlGDt, that is any point at the discharge end of the table will move in an elliptical orbit, the longer axis of the elli so being disposed on a line diagonally to the longitudinal axis of the table. This panning movement is ver essential to the proper concentration of t. e ore. In order to: secure suchva-n elliptical movement of any point on the discharge end of the table, it is absolutely'necessary that the deck shall be supportedzby. means of supports which will yield readily in all directions. It is obvious that. supportswhich will only yield longitudinally would be oi no value, and that the use of supports yielding laterally would be equally of no avail. By having the supports constructed V as described, however, the will yield ually well in all directions, an thus thedec will be given a. freecf aw of myiin zsntioa which lthave foundwo l -ar ab y efi otive is actios, ye I do not wlBh tote limitsditheretq, as ibis 1 gb lons that many changes, might be made i 1 15 an the dttallsioi eon trustion; and arrangement oiparts without departin from the spirit of the IHVQIMSlQIL cl-claims, i- 1 1:. A, longitudin lly neciprocatingi conoen- 1,20 tab e having a base, 'adeck, supports exten mgifro'mt e basefa d operative? enase ith the lea and re il t y y s mg is nsitssi nally reclprocated includlng a membw a is; a: emo io at so deck, said member being operatively connected at its free end to the discharge end of the deck whereby to cause the dischar e end of the deck to be "laterally shifted simu taneously with the longitudinal movement of the deck.

2. A concentrating table including a base frame, resilient supportin members at tached to the base'frame an extending upward therefrom and resiliently yielding in all directions, a deck operatively connected to the upper ends of t e supporti-n members, and means at the discharge en of the deck for giving a lateral movement to the deck upon a longitudinal thrust at the head end of the table.

3. A .conccntrating table including a base frame, resilient supporting members attached to the base frame and extending 11 ward therefrom and resiliently yielding in all directions, a deck operatively connected to the upper ends of the supporting members, and means at the discharge end of the deck for giving a lateral movement to the deck upon a longitudinal thrust at the head end of the table comprising a member pivotally mounted upon the base of the table for movement in a direction at an angle to the longitudinal movement of the deck, said member at its end having a rocking, operative engagement with the deck.

4. A concentrating table including a base frame, resilient supporting members attached to the base frame and extending upward therefrom and resiliently yielding in all directions, transverse beams operatively engaged at their ends With the supporting members, deck beams carrying the deck and operatively engaged with said transverse beams, and means for giving a lateral motion to the discharge end of the table comprising a member pivotally mounted upon the the base frame for movement at an angle to the longitudinal movement of the deck and having its free and formed to have a rocking and sliding engagement with the end beam supporting the deck beam.

5. In a concentrating table having a base and a deck, resiliently yieldable supports attached to the base and operatively supporting the deck and yielda'b e resiliently in all directions, and means for giving a lateral movement to the deck upon a longitudinal thrust thereon comprising a member pivotally mounted upon the base for movement in a horizontal plane and in a direction at an angleto the direction of longitudinal movement, said member at its extremitybeing operatively connected to thejdeckand means for adjusting said member to change its angle with respect to the longitudinal axis of th deck.

n a concentrating table having a base and a deck, resilient, yieida'ble supports attached to the base and cperativelysuppoit- 1 ,saauo ing the deck and yieldable equally in all directions, and means-for giving a lateral, elliptical movement to thedeck upon a longitudinal thrust thereon comprisin a member pivotally mounted upon the base or angular movement, the free end of said member moving in a direction at an angle to the direction of longitudinal movement, said member at its extremity being engaged with but unattached to a portion of the deck. the deck may have a movement independent of said pivotally mounted member.

7. In a concentrating table having a base and a deck, resilient, yieldable supports at tached to the base and operatively support ing the deck and yieldable equally 1n all directions, and means for giving a lateral, elliptical movement to the deck upon a lon- Whereby gitudinal thrust thereon comprising a member pivotally mounted upon the base for movement in a horizontal plane and in a direction at an angle to the direction of longitudinal movement, said member at its eX- tremity being slidingly connected to the deck, and longitudinally adjustable means extending at an angle to said member and opcratively connected to the deck.

8. In a concentrating table having a base and a deck, resilient, yieldable supports attached to the base and operatively supporting the deck and yieldable equally in all directions, and means for giving a lateral, elliptical movement to the deck upon a longitudinal thrust thereon comprising a member pivotally mounted upon the base for movement in a horizontal plane and in a direction at an angle to the direction of longitudinal movement, said member at its extremity being slidingly connected to the deck, and longitudinally adjustable means extending at an angle to said member and operatively connected to the deck, comprising a link pivoted to said member, a fixed member attached to the deck through which the link passes, the link being adjustable with reiation to said member to change the distance between the point of attachment of the link to the deck and said member.

9". In a concentrating table having a base and a deck, resilient, tached to the base and operativel-y supporting the deck and yieldable equally in all directions, and means for giving a lateral, elliptical movement to the deck upon a longitudinal thrust thereon comprising a member pivotallymounted upon thebase for movement in a horizontal plane and in a directionat an angle to the direction of longitudinal movement, said member at its cxtremity being slidinglv connected to the deck, and longitudinally adjustable means exteindin at an angle tosaid member and operative y connected to the deck, comprising a link pivote'djt-o -said member, a fixed yieldable' supports at-;

member attached to thedeck through whichtiao the link passes, the link being adjustable with relation to said member to change the distance between the point of attachment of the link to the deck and said member, and a nut engaging the link and bearing against the fixed member through which the link passes.

10. In a concentrating table including a base, resiliently yielding supports extendlng upward from the base and yielding in all d1rections, deck supporting beams mounted upon the supports, and means for giving a lateral movement to the discharge end of the deck, a base mounted upon the base frame and having an upwardly extending socket, an arm having one end pivoted in said socket, the arm moving in a horizontal plane and in a direction at an angle to the longitudinal axis of the deck, said arm at its ex tremity being rockingly and slidingly engaged with the end deck supportin beam.

11. A concentratin table inc uding a base, resiliently yielding supports extendin upward from the base and yielding in al directions, deck supporting beams mounted upon the upper ends of the supports, and means for giving a lateral, elliptical movement to the discharge end of the deck comprising a base mounted upon the base frame and having an upwardly extending socket, an arm having one end pivoted in said socket, the arm moving in a horizontal plane and in a direction at an angle to the longitudinal axis of the deck, said arm at its extremity being rockingly and slidingl engaged with the end deck supporting beam and said arm being provided with a flange having a series of openings disposed in line toward the center of motion of the arm, a bracket mounted on the end supporting beam, and a link passing through said bracket, the link being screw-threaded, a nut mounted on the link and bearing against the exterior face of the bracket, and a pin operatively connecting the inner end of sand link in any one of said apertures in said flange.

In testimony whereof I hereunto ailix my signature in the presence of two Witnesses.

CHARLES C. HEBBARD,

Witnesses:

EVANS W. BUSKETT, WILLIAM M. STEWART. 

